Cabbage is nutritious and generally safe for most people, so the claim that four groups must “avoid” it is overstated. However, certain people may need to limit it or be more cautious.
4 situations where caution may be appropriate
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People taking warfarin
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Cabbage contains vitamin K, which can affect warfarin’s action.
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This doesn’t usually mean avoiding cabbage altogether. The important thing is to keep vitamin-K intake consistent and follow your clinician’s advice.
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People with digestive problems triggered by cruciferous vegetables
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Cabbage contains fermentable carbohydrates that can cause gas, bloating, or abdominal discomfort, particularly in people with IBS or sensitive digestion.
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Smaller portions or cooked cabbage may be easier to tolerate.
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People with certain thyroid conditions
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Cabbage contains compounds called goitrogens, but normal amounts of cooked cabbage generally aren’t a problem for most people with thyroid disease.
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Very large quantities of raw cruciferous vegetables may be worth discussing with a clinician if you have significant iodine deficiency or thyroid disease.
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People with an allergy to cabbage or related vegetables
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This is uncommon, but anyone who develops hives, swelling, wheezing, vomiting, or other allergic symptoms after eating cabbage should avoid it and seek medical advice.
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Bottom line
For most people, cabbage is a healthy source of fiber, vitamin C, vitamin K, and other plant compounds. You generally don’t need to eliminate it simply because of age, high blood pressure, diabetes, or arthritis.
If you’re taking warfarin or another medication, tell me its name and I can explain whether cabbage or vitamin K is relevant to it.
